ECCustomAttributes
Instances of ECCustomAttributeClasses that are applied to other items in a schema to add new metadata attributes. Any number of custom attributes may be applied to a schema item but only one instance of each class may be applied.
For example:
<ECProperty propertyName="LastMod" typeName="dateTime" displayLabel="Last Modified" description="The last time any element in this Model was modified.">
<ECCustomAttributes>
<DateTimeInfo xmlns="CoreCustomAttributes.1.0">
<DateTimeKind>Utc</DateTimeKind>
</DateTimeInfo>
<HiddenProperty xmlns="CoreCustomAttributes.1.0"/>
</ECCustomAttributes>
</ECProperty>
{
"description" : "The last modified time of the bis:Element. This is maintained by the core framework and should not be set directly by applications.",
"isReadOnly" : true,
"label" : "Last Modified",
"name" : "LastMod",
"type" : "PrimitiveProperty",
"typeName" : "dateTime",
"customAttributes" : [
{
"DateTimeKind" : "Utc",
"className" : "CoreCustomAttributes.DateTimeInfo"
},
{
"className" : "CoreCustomAttributes.HiddenProperty"
}
]
},
Custom attributes allow any custom metadata to be applied because they are defined using a special type of ECClass.
<ECCustomAttributeClass typeName="HiddenProperty" appliesTo="AnyProperty" modifier="Sealed" description="Identifies a property which is designed to be hidden from the user interface">
<ECProperty propertyName="Show" typeName="boolean" description="If set to true show the hidden property. Defaults to False. Allows a property override to show a hidden property in a derived class" />
</ECCustomAttributeClass>
For more details about custom attributes see ECCustomAttributeClass
Last Updated: 10 June, 2025
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